Anti-corrosive package

Abstract

The invention provides an anti-corrosive package which can be added to release agents used in preparing textiles and molded articles from lignocellulosic materials, concrete and polyurethane foam.

What is claimed is: 
     
       1. An anti-corrosive package comprising at least one oxygen scavenger that binds dissolved oxygen within an aqueous carrier; and at least one film forming corrosion inhibitor. 
     
     
       2. An anti-corrosive package as in  claim 1 , comprising at least one oxygen scavenger that binds dissolved oxygen within an aqueous carrier and at least one film forming corrosion inhibitor which is a C 1-4  dialkylamide of the formula RR 1 NH, wherein R and R 1  are each independently C 1-4  alkyl. 
     
     
       3. An anti-corrosive package as in  claim 2 , wherein said oxygen scavenger that binds dissolved oxygen within an aqueous carrier is diethylhydroxylamine, a sulfite, an alkyl or aryl hydrazine, a tannin, a carbohydrazide or a mixture thereof. 
     
     
       4. An anticorrosive package as in  claim 2  wherein diethylhydroxylamine is both said oxygen scavenger that binds dissolved oxygen within an aqueous carrier and the metal passivator. 
     
     
       5. An anti-corrosive package as in  claim 4  wherein said diethylhydroxylamine is used in an amount of 10-20 wt %, based on the total weight of the anti-corrosive package. 
     
     
       6. An anti-corrosive package as in  claim 2  wherein the film forming corrosion inhibitor is dimethylamide. 
     
     
       7. An anti-corrosive package as in  claim 6 , wherein dimethylamide is used as the metal corrosion inhibitor in an amount of 8-20 wt %, based on the total weight of the anti-corrosive package. 
     
     
       8. A mixture comprising an anti-corrosive package and a release agent wherein said anti-corrosive package comprises at least one oxygen scavenger that binds dissolved oxygen within an aqueous carrier and at least one film forming corrosion inhibitor. 
     
     
       9. A mixture as in  claim 8  comprising an anti-corrosive package and a release agent, wherein said anti-corrosive package comprises at least one oxygen scavenger that binds dissolved oxygen within an aqueous carrier and at least one film forming corrosion inhibitor which is a C 1-4  dialkylamide of the formula RR 1 NH, wherein R and R 1  are each independently C 1-4  alkyl. 
     
     
       10. A mixture as in  claim 8  which contains an additional additive selected from preservatives, biocides, anti-foaming agents, surfactants and flame retardants. 
     
     
       11. A mixture as in  claim 8 , wherein said at least one oxygen scavenger(s) that bind dissolved oxygen within an aqueous carrier is diethylhydroxylamine, a sulfite, a hydrazine, a tannin, carbohydrazide or a mixture thereof. 
     
     
       12. A mixture as in  claim 8 , wherein said at least one oxygen scavenger(s) that bind dissolved oxygen within an aqueous carrier is diethylhydroxylamine. 
     
     
       13. A mixture as in  claim 8  which provides release properties to lignocellulosic materials on metal at levels from 0.1-1.0 milligrams of solids/cm 2  of surface area. 
     
     
       14. A method for the manufacture of molded articles comprising applying to a mold surface, a mixture of  claim 8 ; and molding lignocellulosic material or concrete or polyurethane foam in said mold. 
     
     
       15. A mixture as in  claim 8  wherein the release agent comprises:
 a) an alkali metal salt of a tall oil fatty acid and 
 b) an additional wax or oil. 
 
     
     
       16. A mixture as in  claim 15 , wherein said alkali metal salt of a tall oil fatty acid is a potassium salt. 
     
     
       17. A mixture as in  claim 15 , wherein the wax is polyethylene glycol ethylene bisstearamide, or a natural wax. 
     
     
       18. A mixture as in  claim 15 , which contains an additional additive to enhance the release properties selected from polishes, silicones and polytetrafluoroethylene. 
     
     
       19. A mixture as in  claim 15 , which contains an additional additive selected from preservatives, biocides, anti-foaming agents, surfactants and flame retardants. 
     
     
       20. A method of using the mixture of  claim 13 , comprising applying said release agent to the surface of a mold or platen.